Triple Platinum Matched on Amplitrex AT1000. Amplitrex AT1000 Test Results 90%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise).
This has a halo getter and a December 1958 date (B8J). This was tested on our Triplett 3444A tester with results of 1400/1450, where 1600 is the average new value. Do not buy this item and then ask us to falsify the forms.